Bolt-operated conversion; not even semi-auto. Just a fun-to-shoot conversation piece. The SGMT is the tank-mounted variant of the SG43 that has no sights and can be remotely fired electrically. I have a 43 also, but it's a deactivated display piece. I used to "build" deactivated guns for re-enactors that had vehicles that would mount them. Funny to see Soviet SG-43s and similar on US M113s, old APCs or Jeep mounts...LOL. At a distance they pass visual muster and that's all those guys care about.
Biggest deactivated gun I ever built was a double-barreled MIG 23mm aircraft autocannon that the guy mounted on a home-built (nicely done though) towed carriage; he made the thing look like a wicked anti-aircraft gun (nowadays we see the same basic weapon system mounted in the backs of trucks and manned by ISIS fighters). Like all such demils, it was wacked in to many short chunks with a gas axe when brought to me. But I stopped messing with that stuff more than a decade ago; don't have enough time for my own projects.
This thing is about 6' long!
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